Finding the Third Proportional to 174,645 and 262,988

Step by Step Solution

1. Step 1: Write the proportion equation
   174,645 : 262,988 = 262,988 : x
2. Step 2: Convert to fraction form
   174,645/262,988 = 262,988/x
3. Step 3: Cross multiply
   174,645x = 262,988 × 262,988
4. Step 4: Simplify right side
   174,645x = 69,162,688,144
5. Step 5: Solve for x
   x = 69,162,688,144/174,645
6. Step 6: Final answer
   x = 396,018.71